Lee, YLYLLeeHwang, BFBFHwangLin, YCYCLinGuo, YLYLGuo2011-02-142018-07-112011-02-142018-07-112007http://ntur.lib.ntu.edu.tw//handle/246246/226203en-USTime trend of asthma prevalence among middle school children in Taiwan: ISAAC phases I and III surveys.